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Q: Why is the central fringe dark or light?
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What are conditions for a bright and a dark fringe?

central maximum is double the with of any other fringe. all other fringes(dark and bright) are of the same width.


Is the central fringe dark or bright?

Because the path difference or the phase difference between two waves is zero


What is meant by fringe width?

Fringe-width is defined as the sepration between two consecutive dark or bright fringes on the screen.


What are central vision fringe vision and peripheral vision?

Central vision refers to when eyes are focused straight ahead. Peripheral vision refers to vision that occurs outside your central sight of vision. Fringe vision refers to the edge of your peripheral vision.


What is the formula for fringe width?

Fringe width (for dark and bright bands): D * wavelength / d where, D = distance between screen and coherent sources (metres), wavelength = wavelength of light used is experiment (nanometres), d = distance between the 2 coherent sources (millimetres).


What does your eye look like in the dark?

in the dark the pupil of your eye that is the central black part widens a lot. this helps it to recieve ads much light possible. that is why when u enter a dark are it takes time for your pupils to adjust to the lack of light.


Do you get rings in transmitted light in newton rings?

Yes. The only difference is that with reflected light the central spot will be dark while on the other hand with transmitted light it will be bright.


How davisson and germer experiment confirms the wave nature of electron?

by observing the dark fringe due to absence of electrons and by observing bright fringe due to excess of electrons.


What are all of the colours?

Light Red Dark Red Light Orange Dark Orange Light Yellow Dark Yellow Light Green Dark Green Light Blue Dark blue Light purple Dark Purple Light Pink Dark pink Light white Dark White Light Brown Dark Brown Black Light Grey Grey Violet Indigo blue


Why are chess pieces dark and light?

because in the dark ages their was light and dark. so the light was good and the dark was bad


When you do your eyeshadow is it supposed to go from the brow bone down light to dark or dark to light?

light to dark


What is the meaning of Fringe?

An ornamental appendage to the border of a piece of stuff, originally consisting of the ends of the warp, projecting beyond the woven fabric; but more commonly made separate and sewed on, consisting sometimes of projecting ends, twisted or plaited together, and sometimes of loose threads of wool, silk, or linen, or narrow strips of leather, or the like., Something resembling in any respect a fringe; a line of objects along a border or edge; a border; an edging; a margin; a confine., One of a number of light or dark bands, produced by the interference of light; a diffraction band; -- called also interference fringe., The peristome or fringelike appendage of the capsules of most mosses. See Peristome., To adorn the edge of with a fringe or as with a fringe.